在我們做電商的主題活動的時候,經常用到跑馬燈來吸引眼球,並用大轉盤來實現抽獎的效果。
如何在微信小程式開發中也能實現這樣的效果呢?具體請看下面的講解。
需要實現的功能
1.實現類似天貓超市抽獎的大轉盤
2.再實現跑馬燈效果
3.點擊START,開始抽獎,抽獎完成後面有彈窗
先看效果圖
<!--index.wxml--> <view class="container-out"> <view class="circle" wx:for="{{circleList}}" style="top:{{item.topCircle}}rpx;left:{{item.leftCircle}}rpx;background-color: {{(index%2==0)?colorCircleFirst:colorCircleSecond}};"></view> <view class="container-in"> <view class="content-out" wx:for="{{awardList}}" style="top:{{item.topAward}}rpx;left:{{item.leftAward}}rpx;background-color: {{(index==indexSelect)?colorAwardSelect:colorAwardDefault}};"> <image class="award-image" src="{{item.imageAward}}"></image> </view> <view class="start-btn" bindtap="startGame" style=" background-color:{{isRunning?'#e7930a':'#ffe400'}}">START</view> </view> </view>
/**index.wxss**/ .container-out { height: 600rpx; width: 650rpx; background-color: #b136b9; margin: 100rpx auto; border-radius: 40rpx; box-shadow: 0 10px 0 #871a8e; position: relative; } .container-in { width: 580rpx; height: 530rpx; background-color: #871a8e; border-radius: 40rpx; position: absolute; left: 0; right: 0; top: 0; bottom: 0; margin: auto; } /**小圆球 box-shadow: inset 3px 3px 3px #fff2af;*/ .circle { position: absolute; display: block; border-radius: 50%; height: 20rpx; width: 20rpx; } .content-out { position: absolute; height: 150rpx; width: 166.6666rpx; background-color: #f5f0fc; border-radius: 15rpx; box-shadow: 0 5px 0 #d87fde; } /**居中 加粗*/ .start-btn { position: absolute; margin: auto; top: 0; left: 0; bottom: 0; right: 0; border-radius: 15rpx; height: 150rpx; width: 166.6666rpx; background-color: #ffe400; box-shadow: 0 5px 0 #e7930a; color: #f6251e; text-align: center; font-size: 55rpx; font-weight: bolder; line-height: 150rpx; } .award-image { position: absolute; margin: auto; top: 0; left: 0; bottom: 0; right: 0; height: 140rpx; width: 130rpx; }
//index.js //获取应用实例 var app = getApp() Page({ data: { circleList: [],//圆点数组 awardList: [],//奖品数组 colorCircleFirst: '#FFDF2F',//圆点颜色1 colorCircleSecond: '#FE4D32',//圆点颜色2 colorAwardDefault: '#F5F0FC',//奖品默认颜色 colorAwardSelect: '#ffe400',//奖品选中颜色 indexSelect: 0,//被选中的奖品index isRunning: false,//是否正在抽奖 imageAward: [ '../../images/1.jpg', '../../images/2.jpg', '../../images/3.jpg', '../../images/4.jpg', '../../images/5.jpg', '../../images/6.jpg', '../../images/7.jpg', '../../images/8.jpg', ],//奖品图片数组 }, onLoad: function () {